Kelp-drier.



s. R. QPPE'NHEIM.

y KELP 0mm.

0 APPucmou mio :im 7. 1911.

,266,041. Tamm@ May 14, 191s.

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SIMON BUJLPH OPEENHEIIYI, OF KEEER, CALF-ORNA.

KELE-IDREER.

Specification of Letters Eatent.

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Application tiled June 7. i917. Sera] No. 173,368.

To all wko'm it may concern.'

Be it known that l, SIMON RUDOLPH GrrnNHnrM, a citizen of the United States, residingat Keeler, in the county oinyo State of California, have invented a new and use-ful Kelplrier, ot which lthe followinglis a speciiication.

This invention relates to means for drying kelp before burning in an incinerator, and particularly to that type oit such drying means, in Which the help is pressed through a rotating drum, through which a current of hot furnace gases or hot air is also passed.

rlhe main object of the present invention is to provide a rotating drier of this type, in which a very eliioient drying of the lelp is obtained.

Another object oie this invention is 'to prevent excessive heating of the drum itself, so that no insulating covering is required.

Another object is to provide for uniform progress of the help through the drum.

Another obj ect is to prevent the kelp from rolling back out of the drum after it has been fed into it.

The accompanying drawings illustrate an embodiment of my invention and referring thereto Figure l is a side elevation of the rotating drier.

Fig. 2 is a vertical Fig. 3 is a section on line 3 3 in Fig. L is a side elevation of one of thesection of the same.

Fig. 0

'transverse plates in the part of the drum through which the kelp rst passes.

Fig. 5 is a side elevation of one of the 'transverse plates in the latter part of the drum.

The apparatus comprises a hollow drum l, mounted to rotate on bearings 2 at one end and provided with gear means 3 at the other end to eilect rotation of said drum in the direction indicated by the arrow in Fig.

, 3. The material is fed into the-drum at one end, for example by a chute fi, and hot gases are also introduced at this end, for example from a furnace Whose outlet is indicated at 5. The other end of thel drum .may discharge the hot gases into any suitable flue or stack.

A plurality of longitudinal vanes 6 extend throughout the length oit the drum, these vanes being inclined so that their inner ends are advanced in the direction of rotation, so as to for-in pockets 7 which receive the kelp and carry it Well toward the top of the drum at each revolution, before allowing it to fall to the bottom oi' the drum.

The vanos 6 are preferably provided with portions 9 extending obliquely of the length of the drum at the entering end thereof so as to positively retain the material deposited troni the chute t. it desired, these oblique portions may be cut away at the ends as at l() to permit them to pass by the delivery chute.

rlhe motion of the help along the drum is accomplished by means of transverse plates l2 and 13 extending between the vanos 6. These plates are placed at intervals through! out the portion oi the drum in which 'the vancs G extend longitudinally and are arranged in a spiral series so as to forni a sort or" screw conveyor for the lielp as the barrel rotates, the pitch oi' these plates being, such as to produce the required velocity otpas sage of kelp through drum.

lhe transverse plates l2 near the entering end of the drum preferably lit fairly tightly against the wall ot' the drum, and may be provided With perforations 14 to permit pas sage of hot air or gas through the kelp While in the pockets 7, so that such hot air or gas may have access to all ot the lie-lp in the drain at all times.

The transverse platos 1E tov/ard the discllarge end of the drurn may, however, be straight at their outer edges which permits eliective access of hot air Without any perforations and these plates niay therefore be hnperforate as shown.

rihe plates l2 and 13 also serve to support the vanes 6, but it desired, auxiliary spacing and supporting strips 16 may be placed connecting said vanos' at intervals. Said plates are preferably of less height 'than said vanos so that they occupyT peripheral portion of the pockets formed by said vanes, whereby the vanes are enabled to have a more effective lifting action in the help.

The operation of the above-described apparatus is as follows:

The drum l isrotated at a speed such that the kelp will be thoroughly dried before leaving the saine, it being seen from, the above description that With transverse plates havinga given pitch, the rate at which the lelp is fed through the drum depends on the velocit-y at which the drum is rotated, While the quantity o'f material fed through the drum in a given time (lepends upon this velocity and also upon the which help is fed into the drum.

- it toward the top of the drinn and then per- ;nit it to fall through the hot air current to the bottoni cf the drum, this ogeration being continually repeated until the help reaches ihe other end of the drum, The help is thus repeatedly separated and eve-ry part of it cubic-ated to the drying action of the hotair at the delivery end of the drum. The dried help' inay be discharged into any suitable receiving means.

What I claim is:

l. A drier for help and like material comp; 'Sing a cylindrical rotatably mounted drinn, 'having internal vanes extending obliquely from the feed end of the drum part 'way along' the drum7 and thence longitudinally along the drunn parallel 'to the axis of the drinn, to the delivery end of the drum, said Yanes being directed so that their inner endel are advanced in the direction of rotation to form lifting pockets, and cross plates extending between Said longitudinally eX-v tending vanes and extending ohliquely with reference to the longitudinal direction so as to move the material longitudinally of the drum.

2. A drier for help and like material comprieing a cylindrical rotatably ,mounted drum, having internal vaines extending oblquely from the feed end of the drum part Way alonj the druin7 and thence longitudinally along the druin, parallel to the axis of the drinn, to the delivery end of the drum, said vanes being directed sothat their inner ends are advanced in the direction of rotation to forin lifting pockets, and cross plates ext-ending between said longitudinally eX-v tending vanes and extending obliquel'y With reference to the longitudinal direction [so as to niove the material longitudinally of the drinn and said plates being of less height,

than said varies so as to occupy only the peripheral portions of said pockets. I

In testimony whereof I have hereunto set my hand, at Keeler, California, this 21st day of May, 1917.

SIMON RUDOLPH OPPENHEIM. 

